Electrical and Mechanical Characterization of PEO-LiN(CF3SO2)2 Electrolytes
Solid electrolytes based on complexes of poly(ethylene oxide) with lithium salts seem to be very promising materials for use in high energy density lithium batteries.1–3 Such electrolytes may also have the important attribute of mechanical flexibility which greatly facilitates the design of an all-solid state battery and, on the other hand, allows the electrolyte to accommodate for the volume change of the cathode during the charge-discharge cycles of the battery. Since it was revealed that ionic conduction takes place principally in the amorphous phase,4 several studies have focused on the synthesis of amorphous solid electrolytes; in most cases the solution has been sought with regard to the solvent by means of cross-linking5,6 or by addition of small-molecule plasticizers,7 but few studies have been directed towards the salts.
KeywordsPolymer Electrolyte Ethylene Oxide Solid State Ionic Differential Thermal Analysis Curve Lithium Salt
Unable to display preview. Download preview PDF.
- 1.M. Armand, Polymer solid electrolytes — an overview, Solid State Ionics, 9-10; 745 (1983).Google Scholar
- 6.A. Killis, J.F. Le Nest, A. Gandini, and H. Cheradame, Dynamic mechanical properties of crosslinked polyurethanes containing sodium tetraphenylborate, J. Polymer Science: Polymer Physics, ed., 19; 1073(1981).Google Scholar
- 8.M. Armand, W. Gorecki, and R. Andréani, Perfluorosulphonimide salts as solute for polymer electrolytes, in: Proceedings of the Second International Symposium on Polymer Electrolytes, B. Scrosati, ed., Elsevier Applied Science Pub., London (1990).Google Scholar
- 14.D. Fauteux, Diagramme de phase, propriétés de transport et stabilité électrochimique d’électrolytes polymères, Thèse de Doctorat, Université du Quèbec (1986).Google Scholar
- 17.G. Champetier, and L. Monnerie, Introduction à la Chimie Macromoléculaire, Masson, ed., Paris (1969).Google Scholar
- 18.A.J. Wills, G. Capaccio, and I.M Ward, Plastic deformation of polypropylene: effect of molecular weight on drawing behavior and structural characteristics of ultra-high-modulus products, J. Polymer Sci.: Polymer Physics, ed., 18; 493 (1980).Google Scholar
- 19.D.W. Van Krevelen, Properties of Polymers, Elsevier Science Publishing Company, New York (1976).Google Scholar